The Heart and Circulation

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Across
  1. 1. What is the vertical divider in the heart called?
  2. 6. A function of the circulatory system is to protect against what?
  3. 7. The blood, the blood vessels and the heart make up which system?
  4. 10. What are the bottom chambers of the heart called?
  5. 12. Name the type of muscle found in your arms and legs.
  6. 13. This is the thickest type of blood vessel.
  7. 15. This colour of blood cell helps the body fight infection.
Down
  1. 2. This substance makes up 55% of our blood.
  2. 3. What are the chambers at the top of the heart called?
  3. 4. Blue represents which type of blood?
  4. 5. How many chambers does a human heart have?
  5. 8. An example of an artery.
  6. 9. The left side of the heart pumps blood to the ...
  7. 11. What do you call the type of muscle unique to the heart?
  8. 14. Which colour represents oxygenated blood?